Answer:
The most radioactive purified biological molecule will be RNA
Explanation:
RNA (ribonucleic acid) like DNA, is a long, unbranched macromolecule consisting of nucleotides joined by 3' - 5' phosphodiester bond.
In the cultured yeast, RNA is the most radioactive purified biological molecule because RNA is normally single stranded and does not undergo mutation, replication nor transcription.
Hence, it conserves the ultraviolet light absorbed from the radioactive phosphate during the culturing of yeast
It must be able to replicate it's DNA
For future reference, please organize your questions better :)
Its the first one, the second one and the fourth one! I hope this helps
Pollution adds heat to the air. for example: gas and smoke from cars and trucks etc. climate change will be affected because the heat will cause the weather and atmosphere around to get hotter. clearing pollution will keep the air cleaner.